From: David Hoon (david.hoon.ccie@gmail.com)
Date: Mon Nov 21 2005 - 16:06:41 GMT-3
Thanks a lot for all the answers from you guys ..
On 11/20/05, Scott Morris <swm@emanon.com> wrote:
>
> That's not always true. Perhaps the carrier that you deal with it is, but
> certainly not all of them! I have had more customers lately that have PPP
> encapsulation on the CE side than I have other encapsulations. Trend? Who
> knows. But it certainly tells me there is no standard answer!
>
> Cheers,
>
> Scott
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Leo
> Leung
> Sent: Sunday, November 20, 2005 1:32 PM
> To: Peter Van Oene; David Hoon
> Cc: ccielab@groupstudy.com
> Subject: Re: OT: MPLS VPN PE-CE encapsulation
>
> Carriers have ATM configured on PE routers and translated in layer 2 cloud
> to Frame-Relay for CE routers. It's not common to have PPP and HDLC for
> CE.
> Just a thought, even you can do now, there could be a huge re-design work
> once there's a change...
>
> Leo
>
> --- Peter Van Oene <petvan@gmail.com> wrote:
>
> > If you are going to manage the CPE, frame is almost a must here.
> >
> > P
> >
> >
> > On 11/18/05, David Hoon <david.hoon.ccie@gmail.com>
> > wrote:
> > >
> > > Hi,
> > > Sorry for off-topic. I'm now doing a large scale
> > Layer 3 MPLS VPN
> > > deployment design, and stuck with which
> > encapsulation we should use for
> > > PE-CE connection. We have three options now: Cisco
> > HDLC, PPP and Frame
> > > Relay.
> > > Technically, I don't see much different among
> > these encapsulation types.
> > > The provider leans forward to frame relay, with PE
> > as a frame relay DCE
> > > equipment. The reason is easy for migration (we
> > use frame relay now), and
> > > fr
> > > can have sub-interfaces. HDLC and PPP has one-byte
> > less header, no big
> > > deal.
> > > PPP has authentication, which I doubt we are going
> > to use. Frame relay has
> > > one more parameter (DLCI) to be managed; however,
> > all branches will just
> > > share the same DLCI. QoS are just the same, please
> > correct me if I'm
> > > wrong.
> > > I don't see any differents, so for the sake of
> > simple migration, I would
> > > go
> > > frame relay. But if this is a new installation, I
> > would go for Cisco HDLC
> > > or
> > > PPP, for simple configuration. Running frame relay
> > is make sense but
> > > against
> > > my guts. Any recommendation from real world
> > installation?
> > > Thanks a lot.
> > > Best regards,
> > > David Hoon
> > > CCIE #14141
> > >
> > >
> >
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